KR950020072A - Monitor mode control circuit and method - Google Patents

Monitor mode control circuit and method Download PDF

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Publication number
KR950020072A
KR950020072A KR1019930026485A KR930026485A KR950020072A KR 950020072 A KR950020072 A KR 950020072A KR 1019930026485 A KR1019930026485 A KR 1019930026485A KR 930026485 A KR930026485 A KR 930026485A KR 950020072 A KR950020072 A KR 950020072A
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KR
South Korea
Prior art keywords
horizontal
voltage value
video
control circuit
outputting
Prior art date
Application number
KR1019930026485A
Other languages
Korean (ko)
Other versions
KR960006674B1 (en
Inventor
이지영
Original Assignee
김광호
삼성전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019930026485A priority Critical patent/KR960006674B1/en
Publication of KR950020072A publication Critical patent/KR950020072A/en
Priority to US08/639,432 priority patent/US5713040A/en
Application granted granted Critical
Publication of KR960006674B1 publication Critical patent/KR960006674B1/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/153—Digital output to display device ; Cooperation and interconnection of the display device with other functional units using cathode-ray tubes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G1/00—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data
    • G09G1/06—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows
    • G09G1/14—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows the beam tracing a pattern independent of the information to be displayed, this latter determining the parts of the pattern rendered respectively visible and invisible
    • G09G1/16—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows the beam tracing a pattern independent of the information to be displayed, this latter determining the parts of the pattern rendered respectively visible and invisible the pattern of rectangular co-ordinates extending over the whole area of the screen, i.e. television type raster
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/02—Graphics controller able to handle multiple formats, e.g. input or output formats

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Hardware Design (AREA)
  • Human Computer Interaction (AREA)
  • General Engineering & Computer Science (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

이 발명은 비데오 카드로부터 입력되는 수평/수직동기 및 동기 주파수의 극성을 검출하여 비데오 모드를 판별하고, 판별된 비데오 모드에 따라 마이크로 프로세서의 소정 포트에 연결된 외부 저하값을 가변시킴으로써 모니터의 화면상태를 제어하는 전압값을 출ㄹ력하는 모니터 모드 제어회로 및 그 방법에 관한 것이다.The present invention determines the video mode by detecting the polarity of the horizontal / vertical synchronization and synchronization frequency input from the video card, and adjusts the screen state of the monitor by varying the external degradation value connected to a predetermined port of the microprocessor according to the determined video mode. The present invention relates to a monitor mode control circuit for outputting a voltage value to be controlled and a method thereof.

이 발명은 바이어의 요구에 따라 하드웨어 변경없이 마이크로 프로세서의 프로그램만 변경하면 되므로 스펙에 제한을 받지 않고 바이어가 요구하는 어떠한 스펙에도 쉽게 딩응할 수 있고, 또한, 마이크로프로세서의 소정 포트를 하이 또는 로우로 제어하여 소정 포트에 연결된 외부의 저항값을 가변시킴에 의해 판별된 비데오 모드에 맞는 수평 사이즈, 수직 사이즈, 수평 위치, 사이드핀/배럴등의 전압값을 가변시켜 출력하고, 화면의 동기를 잡아주는 발진 주파수의 전압값을 PWM 방식을 이용항여 출력함으로써 디지털/아날로그 컨버터와 EEPROM이 필요없게 되어 비용이 절감되어 경쟁력이 높아지게 된다.The present invention can be easily adapted to any specification required by the buyer without limiting the specification because only the program of the microprocessor needs to be changed without changing the hardware according to the buyer's request, and the predetermined port of the microprocessor can be set to high or low. By controlling the external resistance connected to a certain port by changing the voltage value such as horizontal size, vertical size, horizontal position, side pin / barrel, etc., which are determined by the video mode, the screen is synchronized. By outputting the voltage value of oscillation frequency using PWM method, it eliminates the need for digital / analog converter and EEPROM, thereby reducing cost and increasing competitiveness.

Description

모니터 모드 제어회로 및 그 방법Monitor mode control circuit and method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 이 발명에 따른 모니터 모드 제어회로도.1 is a monitor mode control circuit diagram according to the present invention.

제2도는 이 발명에 따른 모니터 모드 제어방법의 에인 플토우 챠트.2 is an ane pow chart of a monitor mode control method according to the present invention.

Claims (4)

비데오 카드로부터 입력되는 수평/수직동기 주파수 및 극성을 검츌하여 비데오 모드를 판별한 후 소정포트에 하이 또는 로우신호를 출력하는 마이크로 프로세서와, 상기 마이크로 프로세서의 소정 포트에 각각연결되어 상기 포트로 제공되는 하이 또는 로우신호에 의해 판별된 비데오 모드에 맞는 화면 조절모드 전압값을 출력하는 소정계의 저항으로 구성되는 모니터 모드 제어회로,A microprocessor which outputs a high or low signal to a predetermined port after checking a horizontal / vertical synchronization frequency and polarity input from a video card, and outputs a high or low signal to a predetermined port, respectively. A monitor mode control circuit comprising a resistance of a predetermined system for outputting a screen adjustment mode voltage value suitable for a video mode determined by a high or low signal, 제1항에 있어서, 상기 마이크로 프로세서는, 타이머/카운트 인터럽트를 이용하여 비데오 카드로부터입력되는 수평동기 주파수를 판별함을 특징으로 하는 모니터 모드 제어회로.The monitor mode control circuit of claim 1, wherein the microprocessor determines a horizontal synchronization frequency input from the video card using a timer / count interrupt. 제1항에 있어서, 상기 마이크로 프토세서는, 외부 인터럽트를 이용하여 비데오 카드로부터 입력되는수직동기 주파수를 판별함을 특징으로 하는 모니터 모드 제어회로.The monitor mode control circuit according to claim 1, wherein the microprocessor determines a vertical synchronization frequency input from the video card using an external interrupt. 비데오 카드로부터 입력되는 수평/수직동기 주파수 및 극성을 검출하는 제1스텝과, 상기 제1스텝에서 검출된 수평/수직동기 추파수 및 극성을 이용하여 비데오 카드의 비데오 모드를 판별하는 제2스텝과,상기 제2스템에서 판별된 비데오 모드에 따라 화면 조절모드의 각 포트를 선택하여 하이 또는 로우신호를 출력하여 화면 조절모드의 전압값을 조정하는 제3스텝과, 상기 제1스텝에서 판별된 해당 수평, 수직동기주파수에 따톤 발진전압값을 필스폭 변조로 출력하는 제4스텝으로 이루어지는 모니터 모드 제어방법.A first step of detecting a horizontal / vertical synchronization frequency and a polarity input from the video card; a second step of determining a video mode of the video card using the horizontal / vertical synchronization frequency and polarity detected in the first step; A third step of adjusting the voltage value of the screen adjustment mode by selecting each port of the screen adjustment mode and outputting a high or low signal according to the video mode determined in the second system; and the corresponding step determined in the first step. And a fourth step of outputting oscillation voltage value by fill width modulation at horizontal and vertical synchronization frequencies. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930026485A 1993-12-04 1993-12-04 Mode control method of monitor and the method thereof KR960006674B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1019930026485A KR960006674B1 (en) 1993-12-04 1993-12-04 Mode control method of monitor and the method thereof
US08/639,432 US5713040A (en) 1993-12-04 1996-04-29 Monitor-mode control circuit and method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930026485A KR960006674B1 (en) 1993-12-04 1993-12-04 Mode control method of monitor and the method thereof

Publications (2)

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KR950020072A true KR950020072A (en) 1995-07-24
KR960006674B1 KR960006674B1 (en) 1996-05-22

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KR100247391B1 (en) * 1997-04-16 2000-03-15 윤종용 Display apparatus equipped with an image signal pass throuth function
US6262765B1 (en) * 1997-08-20 2001-07-17 Lg Electronics Inc. Automatic picture adjustment system for monitor
US6069663A (en) * 1997-10-06 2000-05-30 Sony Corporation Auto-configuring television and television encoder for computer-style display input
JP2000056729A (en) * 1998-08-05 2000-02-25 Matsushita Electric Ind Co Ltd Automatic display width adjusting circuit
GB2366439A (en) * 2000-09-05 2002-03-06 Sharp Kk Driving arrangements for active matrix LCDs
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KR100365497B1 (en) * 2000-12-15 2002-12-18 엘지.필립스 엘시디 주식회사 Liquid Crystal Display and Driving Method Thereof
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US5713040A (en) 1998-01-27
KR960006674B1 (en) 1996-05-22

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